Help

[pras]

import java.io.*;

public class Pyramid1
{
void printPyramid ( int num, int[] dataOfNum ) {
int line = 1;
while ( 0 < ( num-- ) ) {
for( int i = 1; i <= num + 5 ; i++ ) {
System.out.print ( " " );
}
for( int j = 1; j <= line; j++ ) {
System.out.print ( dataOfNum[j - 1] );
System.out.print ( " " );
}
System.out.println ( "" );
line++;
}
}

public static void main ( String args[] ) {

Integer iv=new Integer(args[0]);
int num=iv.intValue();

//int nLength = 10;
int[] arrayOfNumbers = new int [ num ];

Pyramid1 objPr = new Pyramid1 ();
for ( int nLoop = 0; nLoop < num; nLoop++ ) {
arrayOfNumbers [ nLoop ] = nLoop + 2;
}
objPr.printPyramid ( num, arrayOfNumbers );
}
}

i get the output
1
1 2
and so on


i want output of form

1 3 1
1 3 5 3 1
1 3 5 7 5 3 1
�����.
so please help

[Priyam Srivastava]

perhaps you are in the wrong forum...here you should be discussing problems related to SCJP preperations !!

[pras]

please guys help.

i want it

[Abdullah Mamun]

Hi prasanna

The source you have written contains wrong logic in several places...
Here is a very simple naive source which will give the output you want. But you have to correct the spacing for numbers>10...

    public static void main(String[] args) {
        
        int n;
        Scanner in = new Scanner(System.in);
        n = in.nextInt();
        
        for (int i=1, spaceCount = n; i <= n ; i+=2, spaceCount-=2) {
            int j;
            for (j = 1 ; j < spaceCount ; j++)
                System.out.print(" ");
            for (j=1 ; j <= i ; j+=2) 
                System.out.print(j + " ");
            for (j=i-2; j>=1 ; j-=2)
                System.out.print(j + " ");
            System.out.println();
        }
    }

Hope this will help.

[Campbell Ritchie]

Thank you for helping, but Prasanna Sheregar would have learned a lot more if you had only pointed out the origin of the errors. It is better to work thing sout for oneself than be given an answer.

[pras]

hi can anyone tell me the condition to check for prime numbers.

the numbers are entered from command line

[Ulf Dittmer]

Let's not talk about prime numbers in this thread, since you have posted the same question in this thread. We try to keep each thread to a single topic.